Separator.



G. A. AMEDIGK.

SEPARATOR.

` APPLICATION FILED MAY 20, 1912. LLTY@ Patented June 30, 1914.

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G. A. AMEDIGK.

SBPARATOR.

APPLICATION FILED MAY 20, 1912. LIL'Y'.

2 SHEETS-SHEET 2.

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Patented June 30,1914.

suenen A. Anuman, or nemen, new Yoan.

SEPARATOR.

merma.

To @ZZ whom t may concern.'

Be it known that l, Geenen A. Anrufen, a citizen of the United States,residing` at Darien, in the county of Genesee and State of New York,have invented a new and useful Improvement in Separators, of which thefollowing is a specification.

This invention relates to improvements in separators and moreparticularly to separators or screens of the kind used in bean threshingmachines or the like. i

rhe objects of this invention are to provide separators of this kindwith agitating or stirring means of simple and practical constructionfor moving the material to be separated over the face of a screen toinsure a thorough separation of the seed or grain from the straw, vinesor pods and preventy the clogging up of the separator by the material tobe separated; also to provide separators of this kind with improvedmeans for preventing the loss of seed or grain through the discharge endof the machine; also to improve separators of this kind in the respectshereinafter more fully specified.

ln the accompanying drawings, consisting of two sheets: lfigure l is afragmentary sidevelevation of a threshing machine provided with aseparator embodying the invention. Fig. 2 is a fragmentary longitudinalsec-l tional elevation thereof. Fig. 3 is a plan viewJ partly insection, showing' the separator and agitating device. Fig. e is afragmentary side elevation, taken on the side of the machine opposite tothat shown in Fig. 1, of a part of the actua-ting mechanism for the agietator of the separator. Fig. 5 is a sectional plan thereof on line 5 5,Fig. 4. Fig. 6` is an elevation thereof partly in section, onI line(5*6, Fig. 4:. Fig. 7 is a fragmentary elevation of the guiding meansfor the agitator of the separator. Fig. 8 is a plan view thereof. Figs.9 and 10 are fragmentary elevations of the pivoted guide devices,showing different positions of these parts. Fig. 1l is an enlargedperspective view of a. part of the guiding means.

Like reference characters refer to like parts in the several figures.

The invention is herein described in connection with a bean or peathreshing machine, but it will be understood that it is not limited tothis use and could readily be applied to separators for other material.For the sake of brevity, the beans, peas or grain which is to beseparated from its straw and Specification of Letters Patent.

Application led May 20, 1912.

Patented June Stb, 191e.

Serial No. 698,392.

chaff will be hereinafter referred to as beans.

A represents the frame of a threshing machine which is equipped with anyusual or suitable threshing mechanism (not shown). The beans which arethreshed from the pods drop en an inclined shoe or platform B by whichthey are delivered to a screen b. A part of the beans pass through thisscreen into a trough. or receiver b while the remainder of the materialpasses over the screen and, together with other lbeans and` chaffsubsequently removed from the straw by a. second threshing device, aredelivered by a shoe or plate C to a separator which is mounted on therear portion of the frame A. This separator comprises the usual screen Dsecured on a shoe E which is adapted to be shaken or reciprocatedlengthwise of the machine, for instance, by a rock shaft e .which has anarm c engaging the shoe E and a rock arm e2 which is connected to apitman c3 from which it receives its rocking motion. The material whilein the separator is subjected to an air blast from a suitable fan orblower F by which the chaff and other light impurities are blown outthrough the discharge end of the machine, while the beans drop on theshoe E and pass into a tube or conveyer G, located below the shoe. Allof these parts of the threshing machine, except as hereinafterspecified, may

be of any usual or suitable construction and constitute no part of thisinvention.

ln order to prevent the clogging up of the screen D and thusnecessitating the stopping of the machine and the cleaning out of thescreen, which causes considerable delay,

means are employed for agitating and stirring the material on thescreen. ln the construction shown, an agitator arm or sweep- H isprovided for this purpose which eX- tends lengthwise of the machineabove the screen. and is adapted to sweep across the same from side toside. This sweep H 1s preferably rigidly secured by means of ak suitableconnecting piece 7L to a bar or pole 71,', one end of which is suitablypivoted at h2 on the front axle or other part of the frame of themachine. The bar It and the sweep H secured thereto are adapted to swingon the pivot h2 so that the sweep l-l. passes over the screen andthereby thoroughly agitates or stirs up the .material on the screen.Since the sweep l-l swings from the pivot h2, the cornersof the screennearest z. screen. 3 5

to the pivot will not be reached by a straight sweep, and the sweep `istherefore preferably, provided with side arms 71,3 h3 which are securedto the main sweep arm H and "eX- i tend outwardly and rearwardly to eachside thereof.

To prevent the sweepljl from piling up, the material on each side of thescreenor throwing 4it sidewise olflof the screen, means. vareypreferably provided for lifting the sweep up from the screen before itreachesy ,the end of its movement and carrying it over theinaterialwhich has been shoved acrossl `the;screen'by the sweep, andlthenlowering` "thesweep to the screen atfthe outer or far' side ofthematerialyvhen the arm reaches the end of itsmovement. rl`his isaccom# plished yinthe construction'shown by prolvidingthefrear end ofVthe bar zl with an anti'ffriction .roller I which is adapted to travelon avsuitablegiiide or track compris- ,ingi'a substantially horizontalguide rail i, 'and inclined guideplates'plQ at 'the ends of "the railupon which the iroller'is adapted to l'travel vfto raise the sweep H' upfrom the 'screen D as itaproaclies'the end of its move-1 nient in eachdirection. These guide plates are pivoted atc 7c on the frame oftheina-I` chine abovethe ends vof the guide rail iandg each is provided'with .a slot k" 'throught which' the roller 1 is adapted to dropbackf`'td the Avrail after vreaching the end of itsL travel to againlower thesweep H onto thel y On thereti'irri'.'moveinent`l the rollerl passesiinderneath the plates llQwhichswing on `their pivots toperniit'the roller to pass Thepath of movement ofy the roller will thereforebe"as indicated by dottedlines Fig. 7 and the agitator 'sweep will have acorresponding movement over they upper` face fftlhe sieve.'The'imovement causes thematerial to be scraped by the Varm H almost tothe edge of the screen, whereupon the arm Vis raised and carried Ioverto the outer side ofthe'xpile of material and then moves the .pile backover'the'screen tofthe'` opposite side, wherey a similar operation isrepeated. This movement of the sweep"y prevents `the accumulation ofmaterial on theeid'e's ofthe "rsc'reen vandthe scattering of vthesameovjer4 the side edges of the screen. Any'fsiiitable means maybeIemployed for reciprocating ,thelagitator'bah For' example, a shaft L,l`driven by the'fthreshing mechanism th'roiig'gih a pulley andbelt'Z'Figs. 4 and 5, is' provided with pinion Z. whichfmesh'es yv'vitha gear Z2 seciired to ne ,end .of a shaft Z3.. This shaft extendstransversely across the machine andis provided at its opposite end withan arm for crank Zftwhiclh is connected by a pitma'n toone arm of alever Z6 which is a Vivovted onz the frame of the machine and? which hasanother arml connected a Irod fl? fwith the I`svi'ingiiig""barVIY,whereby motion 'is "transmitted from the crank arm to the agitator. Themovement of the agitator sweep across the face of the screen absolutelyprevents the clogging of the same and also` eXpedites the separation ofthe material. The action of the agitation against the screenhelps toremove any pods or other material adhering to the beans.

Provision generally has to be made in separators of this kind forpreventing any of the beans from being blown over', the screen and outthrough the discharge end of ther machine byl thecurrentv of lair fromthe fan. For this purpose'an inclined baffle plate M extendingtransversely of the'nmchine at the rear end lof the screen' isIordinarily provided against which the beans strike yand drop into aconveyer tro-ugh m below the baille plate. This balfle 'plate 'usuallyhas only aslight' inclination sopas to prevent the accumulation of chaninthe trough, but 'siichan arrangement' permits some of the beans toy beblown outy ofthe machine over the inclinediplatefTo,avoidthis'objection, the plate in'thefprjesent'machine isl given 'a greaterinclination `or pitch and a4 mechanically operated device N' is providedto prevent the clogging up of the space between the plate and the'shaking shoe lEl The device N, shown in the drawings,'consists of arocking ybar or rodwhich extends transversely of the machine in thespace between the shoe E and the baftl'ezplalte and is provided with apliii'r'ia.lityofftinesy or teeth @crossing said space.""1`he bar N isjournaled at"ts'endsb'n the sidewalls tof ithe' shaking shoe' E and hasarigid arm'n at one end thereof outside' of the'machine which ispivoted' to a link n2 'which is lsecured toa stationaryl or rigid partof the frame. The reciprocation of the Ashoe in the frame of the machine'causes the to'othedlbar Nto rocky or oscillate in `the space between,the shoe and the baille plate land 'thiis loosen ,or

"agitate the chaffy and 'straw therein so that' tl'i'e blast of air caneasily carrythe .same ont through V`the discharge opening 'of 'theVmachine and prevent'them from collecting r-. 1 i A fi'n and clickingsaid space; The inclination `ofthe ba'iieplate can th'erlefere' bema'degreat enough to preventlthe beans frombel'ing bloyvnoiit yof theymachine."Iy `""Icla'i'm my invention y1.' na separator, 'the combinationwith a separating sicreeno'f 'a sweeparrangedfto move lto 'andfr'o overthe vsiii-farce of said screen, and means coperatingiwith said arm' forraising the'sameaway from i' t-he surface of said "screenbefore' thesweep reaches the limit ofits' travel Lin yeach directinand lthenlowering the sweep again toward Vthe 'surface of the screen,vsubstantially as St jrth; .y

2. 4In a separator, the combination with a screen, of a sweep "piv'otedlto r'oscillate over `the"'siirface of said screen, means for swingingsaid sweep on its pivot, and means cooperating with said arm for raisingthe same away from the surface of said screen before the sweep reachesthe limit of its travel in each direction and t-hen lowering the sweepagain toward the surface of the same, substantially as set forth.

3. 1n a separator, the combination with a screen, of a sweep arranged tooscillate over the surface of said screen, a pivoted bar to which saidsweep is secured, means for swinging said bar, guiding means coperatingwith said bar for raising said sweep away from the surface of saidscreen before the sweep reaches the limit of its travel in eachdirection and then lowering the sweep again toward the surface of thescreen, substantially as set forth.

4. In a separator, the combination with a separating screen, of a sweeparranged to move to and fro over the surface of said screen, a rollerconnected with said sweep, a guiding face over which said roller isadapted to travel, inclined parts over which the roller is adapted topass near the end of its movement, and means for permitting the rollerto drop from said inclined parts to said guiding face at the end of themovement of the roller and pass beneath said inclined parts in itsreturn movement, substantially as set forth.

5. In a separator, the combination with a screen, of a sweep arranged tooscillate over the surface of said screen, a pivoted bar to which saidsweep is secured, means for swinging said bar, a roller secured on saidbar, a guiding face over which said roller is adapted to travel,inclined plates pivoted near the ends of said guiding face upon whichsaid roller is adapted to travel to raise the sweep from the screen andfrom which the roller is adapted to drop onto the guiding face to lowerthe sweep onto the surface of the screen, said pivoted plates beingadapted to rise to permit the passage of said roller beneath them,substantially as set forth.

"Witness my hand, this 11th day of May, 1912.

GEORGE A. AMEDIGK.

Witnesses E. J. SHINN, H. W. DRILLING.

Copies of this patent may be obtained for ive cents each, by addressingthe Commissioner of Patents,

Washington, D. C.

